rachel swann on president obama's genealogy. and a biography of barack obama. at 1055 p.m., edward klein takes a look at president obama before and after he reached the white house. and the first official white house videographer from 2009- 2011. all this on c-span2. >> we have discovered that with our surveillance flights. quarantine around cuba. a soviet submarine was found by american ships and they start to drop missile charges, depth charges on the soviet submarine and knocked out electrical system. the carbon dioxide was rising. people were passing out inside the submarine. they have no communication. the commander says, love the torpedoes. let's attack. we're not going to do somersaults down here. we're not going to disgrace our country. they set it free to launch. fortunately the other commander talked about it. arkopov might have saved the world. >> it was one of the scariest moments. >> a moment in human history. >> we did not know this, we were teenagers. that is when all this criticism of cannady -- kennedy. we would not be even here to talk. prexy